Yeah, thats why I'm asking. I can't find these people
Then you have a big problem, because if you can't find
"those people", then you are definitely not ready to recognize if someone is legitimate or if they are setting a trap for you. Successful traders do not share their advice publicly but focus on their goals, and some indicators say that only about 5% of people who trade make a profit.
If you are already going on such adventures, follow at least one rule - invest only as much money as you are ready to lose. Most people learn from mistakes, it's just a question of how expensive those mistakes are.